The table below provides a quick-reference summary of the different versions:
Reflecting modern construction priorities, the 1st Revision incorporated Annex J – Sustainability Specification , bringing all aspects of the specification documentation together in one publication.
Clear definitions of the required Level of Detail (LOD) and Level of Information (LOI) at the point of handover minimize errors during the detailing phase.
Understanding the core updates, standard requirements, and practical application of the is essential for maintaining compliance on contemporary steel construction projects.
) is now a mandatory clause to ensure companies have proven competency and safety. Welding Quality : Welding systems must now be certified to BS EN ISO 3834-3 for Execution Class 2 and BS EN ISO 3834-2 for Execution Class 3. Sustainability (Annex J) Sustainability Specification
Precise measurements for fabrication and erected steelwork.
Welding is the primary method of joining structural steel, and its integrity is paramount. The NSSS 7th Edition incorporates updated requirements for welding procedures and welder qualifications, referencing BS EN ISO 15614 and BS EN ISO 9606. It specifies the extent of non-destructive testing (NDT) required based on the execution class and the joint type.
Furthermore, the 7th Edition addresses the modernization of materials. It includes updated provisions for higher-grade steels and proprietary products, such as cellular beams and hollow sections, which have become ubiquitous in modern design. This ensures that the specification remains relevant to the current market, allowing designers to utilize advanced materials with confidence that the fabrication standards are adequate.
Inspection, testing, and non-conformance management. How to Access the NSSS 7th Edition PDF
This article provides a complete guide to the , covering its key features, latest revisions, content, and how to access it.
The specification defines standards for the fabrication and erection of structural steelwork and is intended to be incorporated into contract documentation.